Machine for inserting fasteners.



A. RAICHE.. MAGHINE'FOR INSEETING FASTENERS.

APPLIG'ATION FILED APRA, 1914.

Patented Dec. 1, 1914 Z/f A sl-Q..

MizesSeS IHE NDRRIS PETER CO.PHOTOLITHO.. WASHING roN, D, C.

A. RAIGHE.

MACHINE POR INSERTING FASTENERS.

APPLICATION FILED APR. 4, 1914.

1,1 1 9,724. Patented Dec. 1, 1914 2 SHEETS-SHEET 2.

THE MORRIS PETERS C0'. PHOTO-LITHO., WASHING IDN, DA C the punch the stock is heldon 4the punch y -UNITED sTATns raTnNT orricn. y l' ANDnnWnAlcI-rn, lor rATnHAvEN, Mass'rienusnTTs as-srenon To ATLAS Tack COMPANY, or rannavniv, MAssacnUsnTTs, av CORPORATION or` NEW JERSEY.

MACHENE 'FOR INSEBTING FASTENERS.

Specification of Letters Patent.

Patented Dec. 1, 1914.

aplpncanonl mea April 4, 1914. serial no. 829,536. i

To all/whom t may concern; p

Be it known that I, ANDREW RAIGHE, a citizen of the United States, and resident of Fairhaven, in the county of Bristol and State of Massachusetts, haveinventedncertain new anduseful improvements in Machines for Inserting Fasteners, Y ofWhichA the following is a specification. l l A This invention relates to machines for inserting fasteners, and the accompanying drawings show the same vas embodied in a machine for inserting lacing hooks.' Of the accompanying drawings,l .which illustrate lone form in which the invention may be embodied Figure l represents a front elevation of a hoolpsetting machine, portions of which are omitted forthe sake of avoiding the obscuring of other portions. Fig. 2 represents a sidelelevationp partly in section, of the front part of the machine, and includes some of the elements omitted from Fig. l. Fig. 3 represents ahorizontal section through the feedl mechanism in vthe plane indicated by line 3-3 ofv Fig. 1.- et represents a top plan view of the Work support, hook carrier, Work gage, and a portion of the pressenfoot which coperates with the Work support. Figs. 5, 6 and 7 represent, on a larger scale, vertical sections in a plane fromfront to rear of thedevices which insert and set thefasteners, and these figures shown successive positions and stages of operation. Fig. S represents a front elevation, partly in section, of themechanismwhich actuates the .setting die. Fig. l9frepresents a side elevation of the `structure shown at the-bottom of Fig. 8. yF1g.l0

represents one of the ycams included j in Fig. 9.

The same reference characters indicate the same parts Wherever they occur. n

ln the machine as illustrated there is a combined;upsetting die and punch, the latterbeinga projection in the center of the die. The punch cooperates with a punch block to form a hole in the stock, and when the punch is in the stock it is moved laterally to feed the stock. A hook carrier is arranged tofstandy in the same plane as the punchblock during the feeding of the stock, and during the feeding movement of by the punch lblock and hook carrier. rlhe punch block is fixed, and for-'this reason theplength to which the punch may` move' in punching the stock islimited by 4the punch bloclr,'iegarclless of the thickness of the stock. lt is desirable, however, to flare the shank of thelacing hook according to the thickness of the stock, and for this reason l have` provided means for yautomatically adjusting the setting die toWardthe hook carrier after the stock hasbeen fed but before the upsetting die and punch are returned to their initial ,.position. This movement of the upsetting die toward the hook carrier may occur .before or after the shank of the hooklias been inserted in the stock. lf --it occurs before the shank of the hook is inserted, the upsetting die Will takel its final setting position While 'the hook carrier is descending to receive a hook or lrising to insert the hook in the stock. it `might yalso occur simultaneously With the flaring movement of the hook carrier,- or it might occur after the flaring'rnovement lof the carrier has been finished, Without varying the result of the setting operation. rPhe setting mechanism as illustrated is arranged to cause the aforesaid movementof the setting die toward the hook carrier after the hook carrier has completed itssetting movement toward the die. Themechanism. for giving vthe final adjustment to thesetting die is adjustable to vary the length of. such movement, in accordance with the thickness of the stock. YVhen operating upon relatively thick stock this `movement of-theupsetting die would be relatively little, but When operating upon relatively thin stock the movement of the die Would be greater., Special mechanism is provided forvcausing this variable move` f ment of the die. The die and punchmust have an invariable punching stroke in order tocoact accuratelynwith the punch block, and it would therefore be impractical to varythe length` of the punching' stroke for the purpose of varying the @degree of flare imparted to the shankl of the hook. It would also be impracticable to vary the flaring' of the hook by varying the movement/of the hook carrier, because it is lnecessary for thev hook carrier, when at its lowest position, to register Withthe hook racevvay, and When atits highest position to register with the punch block in orderl to hold the stock on the punch during the feeding movement.

- When the machine is at rest the anvil and punch are elevated andare outV of line'vvith the hook carrier. hook carrier at this time is flush with the top surface of, and contiguous with relation to, the stock-supporting element. rlhe stock is clamped primarily upon a work support by a presser-foot; and when the machine is started, the combined die and punch descend to punch a hole in the stock. l/Vhen the punch has completed its punching stroke, its pressure against the punch block is relieved sufficiently to permit feeding the stock, but the punch is not withdrawn from the stock. When the stock has been punched and the pressure of the punch relieved as stated, the combined die and punch are moved laterally to feed the stock along the punch block to hook-receiving position. At this time the top surface of the hook carrier is flush with the top surface of the punch block, and during the feeding movement the punch block and hook carrier act to keep the stock upon the punch to insure accuracy of feed. After the stock has been fed to hook-receiving position the hook carrier descends to receive a hook, the stock being supported upon the punch during this interval by the stationary work support. rl`he hook carrier, upon receiving a hook, rises and passes the shank of the hook through the stock and forces the shank against the die to flare the shank.

l/Vhen the setting operation has been completed, the combined die and punch are raised and moved laterally to their initial position, the hook carrier in the meantime remaining stationary in the throat of the set hook. As the set hook will be moved laterally from the hook carrier by the next succeeding feeding operation, the carrier will be free of the set hook before it becomes necessary for the carrier to descend to receive another hook. The presser-foot is lifted before the beginning of each feeding move- .ment and is returned to clamping position upon the completion of the feeding movement.

Referring new to the drawings, the setting die is indicated at 12, and the punch is indicated at 13. This device is affixed to a plunger 14 which is arranged to slide up and down in a feed carriage 15. A head 16 is aHiXed to the upper end of the plunger and is formed with a groove 17 in which a sliding block 18 is arranged. This block is carried by a crankpin 19 which is aflixed to a rockshaft 20." The mechanism for operating the rockshaft is hereinafter described in detail.

The feed carriage 15 is arranged to slide from side to side upon a guide 21 formed f upon the main frame of the machine. The

mechanism for transmitting feeding movement to the carriage is shown by Fig. 3. A toothed rack 22 is aiiixed to the carriage and engages a toothed gear segment 23. The

The top surface of the segment 23 is compounded with a toothed segment 24, the two segments being formed integrally, in the present instance, with a hub 25. The hub is arranged to oscillatc upon a stud 26. The teeth of the segment 24 are engaged by a toothed rack 27. This rack is carried by a slide 28 which is arranged to slide from front to rear on guides 29 on the main frame. Suitable means, such as a cam (not shown), is provided for reciprocating the slide 28.

The punch block is indicated at 30 in Fig. 4. It is set into a stationary work support 31 so that its topsurface is flush with that of the work support. A work gage is indicatedat 32 and is adjustably mounted upon the Awork support. A presser-foot, indicated at ,33, is arranged to coperate with the work support. The presser-foot is mounted upon a rod 34 which. Ais arranged to slide in bearings`35." .A block 36 affixed to the rod has suitable connection with a bell-crank lever 37 whose fulcrum is indicated at 88 in Fig. 2. The clamping stress and retractory movement are transmitted to the bell-crank lever by a link 39. Suitable means, such as a cam (not shown), is provided for actuating the link. f

The hook carrier isindicated at 40, and as shown by Figs. 5, 6 and 7, is in the form of a'lip and is adapted to occupy the throat of alacing hook'x, between the head and shank of the'hook. The hook carrier is aliiXed to a plunger 41 which is arranged to slide up and' down in bearings such as that indicated at 42. The structure of the hook carrier/iis, to all intents and purposes, like that"V illustrated and described in Letters Patent 14136510, granted to me August 27, 1912. The plunger 41 is provided with cam rolls 43 and 44 Awhich coact respectively with cams 45" and 46.` These cams are affixed to av shaft 47. The cam 45 imparts upward movement to the hook carrier, and the cam 46`impar`ts `downward movement. As shown by Figs.' 1 and 2, the hook carrier is held so that its topl surface is flush with that of the stationaryl work support and punch block.

Figs. 2 and 5 illustrate a raceway 48 for lacing hooks, which raceway has its delivery end belowthe work support. At 49 in Fig.

5' is represented a device of well-known structure and operation for feeding hooks one at a time| to the raceway 48. `When the hook carrier is at its lowest position it is in line with the'delivery end of the raceway, and the lacing hook which is supported by theraceway is transferred to the carrier by a reciprocatory pusher 50. While the hook is upon the carrier 40 it is prevented from moving laterally by a retaining device 51 which is formed to straddle the head of the hook and to engage the head at diametrically opposite points. This device is fully illustrated and described in my aforesaid Patent 1,036,710. During the feeding movement of the work the device 51 is retracted to the position indicated by dotted lines in Fig. 7, but at other times the device remains in the position shown by Figs. 5 and 6. For this purpose a lever' 52 and cam 53 are provided. The fulcrum of 'the lever is indicated at 54. The cam is carried by vshaft 47. In order to maintain the desired connection between the lever 52 and the device 51 when thehook v carrier is moving up ,and down, I provide vby the cam 53.

hook carrier 40 has laterally extending.

the lever with a sliding extension 55 which is pivotally connected to the device 51. A spring 56 acting upon the lever 52 normally holds the device 51 in hook-engaging position, and retractory movement is caused As shown by Fig. 1, the

flanges which rest upon the device 51 in such manner that the stress upon the carrier, due to flaring a hook, is partly sustained by the device 51 and by the' surfaces of the plunger upon which the device 51 rests.

The mechanism for reciprocating the combined punch and setting die is shown byv Figs. 8, 9 and 10. For this purpose three cams are provided, and they are indicated respectively at'60, 61 and 62. These cams are all aliiXed to the shaft L17. Cams 60 and 61 coact respectively with rolls 60 and 61. These rolls are carried by a link 63 whose upper end embraces a crankpin Gil fastened to the rockshaft 20. The lower end of the link 63 has sliding engagement with the shaft 47, and for thispurpose is provided with a slot 65 through which the shaft eX- tends, the shaft acting as a guide to guide the movement of the link. Dotted lines a, b and o in Fig. 8 indicate the several angular positions at which the crankpin dwells.

Vhen the crankpin is raised to the angular position indicated by line a, the punch and setting die are elevated as shown by Figs. 1 and 2. This may be'regarded as the initial position of the punch and die. The cam 60 vimparts downward movement to the punch to such extent as to carry the cranki pin 64 from line a to line Zi. This cam causes the punching of the stock, and when the highest point 66 of this cam has passed the roll 60 the punching stress is relieved and the crankpin 64rsprings back to they position indicated by line c. `The .position of the punch as shown by Fig. 5 corresponds to position c in Fig. 8. The crankpin is held at this position by a long concentric portion of the cam 60, and while so held the stock is fed. After the stock has been fed to hook-receiving position the setting die 12 is depressed in consequence of a movement of the crankpin 64 from position c toward position b. This movement of the crankpin is caused by cam 62 for the purpose of flaring the shank of the hook to a degree commensurate .withthe thickness of the stock. Figs. 6 and 7 show the setting die before and after it is depressed inconsequence of movement'c'aused by cam 62, and it will be observed that the carrier'O is provided with a hole 10 to receive the punch. For the purpose of depressing the setting die to the position shown byFig. 7 the ca m 62 actsupon a lever 67 which is mounted'to rock upon a fulcrum 68. The lever has a roll 62 which is engaged by the cam. An adjustable screw 69 secured in the lever 67 transmits movement from the lever to a dog 70 which is formed upon or'afliXed to a sleeve 71. This sleeve is arranged upon the fulcrum 68 andy is provided with an arm 72. The dog 70 and arm 72 are rigid with relation to each other. l

its highest position after a setting operation,

is formed with a notch or depression 73 sol (Fig. 10') to enable the roll 61 to be def pressed by the arm 72. The dog 70 is held against the screw 69 by a compression'spring 74 arranged in a socket formed in the lever` 67 By adjusting the screw 69 the relation of the arm 72 as to the lever 67 lmay be l`varied in such manner that the downward movement which the setting die receives. from the ycam 62 may be varied. Referring once more to the'movements of the' crankpin 64, it will be observed that the punching movement is from a to Z), the pressure-relieving movement is from Z2 to c, the movement for determining the final settingof the hook is from c toward b, depending upon the adjustment of lthe screw 69, and the return' movement from b back to a.A The feeding of the work occurs whilel the crankpin is at '0. A notch 7 5 in the cam 61 receives the roll 61 at the moment when the punching stress is greatest, and is the counterpartof the nose 66 shown in Fig. 8.

I claim:

comprising a stock support, a combined setting die and punch, means arranged to cause said punch to punch the stock on said support, means arranged to move said combined die and punch laterally while the punch is in the stock, to feed the stock to hook-re'- ceiving position, a hook carrier and its operating mechanism arranged to hold the stock on said punch while the combined punch and die are movingto hook-setting position, and means 'for feeding lacing hooks, said hook carrier being arranged to carrya hook from said hook-feeding means and force the hook through the stock and against said die to flare the hook.

2.*A hook-setting machine, comprising a combined setting die and punch and a stock support arranged to coperate with said punch, means arranged to move said combined die and punch to punch the stock on said support, means arranged to move said combined die and punch laterally beyond said support While said punch is in the stock, to feed the stock to hook-receiving po sition, a hook carrier and operating means therefor' arranged to support said carrier in stock-engaging position during the feeding of the stock, to keep the stock on said punch, said operating means being arranged to move said carrier to insert the shank of a lacing hook in the stock on said punch and to flare said shank against said die, and

ANDREV RAICHE.

Witnesses P. `W. PEZZETTI, WALTER P. ABELL.

Copies a! this patent may be obtained for live cents each, by addressing' the Commissioner of Pite1m- Wmhmgton', D. c." 

